Pulverizer.



PATENTED JAN. 29, 1907.

P. L. SIMPSON.

PULVERIZER.

APPLIOATION FILED JULY 24, 1905.

4 SHEETS-SHEET 1.

V zi ET No. 842,430. PATENTED JAN. 29, 1907.

' P. L. SIMPSON.

PULVERIZER.

APPLIOA'1ION IILED JULY 2A, 1906.

4 SHEETS-SHEET 2.

PATENTED JAN. 29, 1907. P. L. SIMPSON.

PULVERIZBR.

APPLIOATfON FILED JULY 24, 1905.

4 SHEETS-SHEET 3.

l Fe1e2 L.,Sa'm s077.

.EIVEEEE] PATENTED JANQ29, 1907.

P. L. SIMPSON.

PULVERIZER.

APPLICATION IILEDJULY 24, 1905.

4 SHEETS-SHEET 4.

. use. thus obviating one of the most usual sometimes throws the machine out of balance,

UNITED STATES PATENT OF IC PETER L. SIMPSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO HERBERT S.

I SIMPSON, OF CHICAGO, ILLINOIS.

PULVERIZER.

Specification of Letters Patent.

Patented J an. 29, 1907.

Application filed July 24, 1905- Serial No. 270,967-

.To all whom it may concern.-

Be it known'that I, PE ER L. SIMPSON, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pulverizers; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, whichform a part of this specification.

This invention relates to improvements in hammer-pulverizers. Heretoforc in many of the devices of this class it has been diflicult to secure uniformity of result for the reason that the materials are pulverized more perfectly when the hammers Work closely to the grates. As the distance is increased through wear the material delivered from the machine becomes coarser until it becomes necessary to readjust the hammers. This has in many of the constructions necessitated stopping the machine and the resetting of the hammers, an operation which requires the utmost care and skill to secure the requisite accuracy of ad-. justment, for should the adjustment be faulty, as sometimes occurs, injury to the machine is likely to result. Furthermore, in machines of this class uneven wear of the hammers and inasmuch as such machines run at a very high speed injury to the hearings or other parts of the mechanism almost invariably results, necessitating expensive repairs and loss of time. Furthermore, in many of the machines heretofore devised the hammers have been so rigidly secured upon their shaft that should a lump of excessively hard material be delivered into the machine injury is likely to result.

With these defects in view the object of the invention is to afford a machine capable of being instantly adjusted to any required fineness of product without the necessity of stopping the machine or the expenditure of time required to adjust the hammers individually.

It is a further object of the invention to afford a construction obviating any tendency for the machine to get out of balance through causes of injury to such machines.

Itis a further and very important object of the invention to afford a construction in l which the hammers are flexibly secured upon the hammer-shaft, thereby enabling the hammers, though each delivering its full blowupon the material, to yield sufliciently in the event of encountering material of excessive hardness to prevent injury to the mechanism.

The invention embraces many novel features and consistsin the matters hereinafter described, and more fully pointed out and defined in the appended claims.

In the drawin s, Figure 1 is a side elevation of a machine emliodying my invention. Fig. 2 is a central vertical section of the same. Fig. 3 is a section taken on line 3 3 ofFig. 1. Fig. 4 is an end elevation of the machine. Fig. 5 is a top plan view. Fi 6 is an elevation of the end opposite that s own in Fig. 4:.

Fig. 7 is an enlarged perspective view of the.

ing-frame, which, as shown, is constructed of cast metal or other suitable material and is approximately rectangular, afiording integral side and end walls, which, as shown, are flanged at the bottom a to afford meansfor rigidly securin the same upon a supporting foundation and flanged at the top to afford means for rigidly connecting the casing or hood A and the chute or hopper A therewith.

Secured on each side of the base-frame A are standards B, which are vertically slotted longitudinally of the machine to near the base, and at the upper ends thereof are hearings to receive a pivotshaft 1;, one on each side the main frame A, and on each of which is pivoted a lever B, the rear ends of which curve around the rear end of the machine and are integrally connected, affording a yoke. The front ends of said levers are shorter than the rearwardly-directed ends and heavier and extend along each side of the frame and approximately to the center of the same and are provided at their ends with bearings b for the hammer-shaft C. Said bearings, as shown, are self-adjusting antifriction-bearings, comprising a case I)", having secured therein around the shaft a plurality of spiral springs b, as shown in Fig. 10, constructed of flat steel bars, wound to afford a close spiral roller and, as shown, arranged in .the case with alternate spring-rollers having the lead of the spiral reversed. At the rear of the yoke formed by the connected ends of said levers is a jack for adjusting the front ends of said levers vertically and comprising,

as shown, a shaft B rotatively secured in a.

rearwardly-extending lega integral with the lower frame member. Said shaft extends upwardly through a vertical aperture at the middle of said yoke and is provided with a head below and a collar 6 above the leg (1 and is threaded for its entire length above said collar. Nuts b and b engage below and above the yoke, respectively, and act to hold the same rigidly in adjustment. At the upper end of said shaft B is provided an indicator b the end'of which extends down over and in close relation with the side of the yoke on which is indicated a linear scale, (shown in Fig. 4,) arranged to indicate the variation in rims 0 Six of said ribs 0 are shown (though a greater or less number may be used) and are arranged equal distances apart and are provided with apertures equidistant from the axis and in alinement through the ribs, and through which extend cylindric rods or pintles e, upon which are pivoted the hammers E and E. As shown, six of said pintles e are arranged at e ual distances apart around the axis, though 0 viously the number of pintles .may' vary. The hammers E are bars of :metal of equal length and a thickness to fit between adjacent ribs 0 and are apertured near the inner end to receive the pintles therethrough. The hammers E are similar to the hammers E and are arranged alternately therewith and similarly secured upon the, pintles e. The outer ends e of the said hammers E are twisted in one direction obliquely with thelane of rotation. Said hammers are all 0 e ual length and free to swing upon their sha ts and when in operation are thrown radially outward from the hammer-shaft by centrifugal action.

-- 'The bottom of the base-frame is open to admit of delivery of ,material therethrough,

v concentric with the shaft 0 are closely-arand arranged transversely-in the bottom and ranged cylindric rods F, th'e-endsf of which are seated in a segment-f and are flat on the upper side and are: rigidly locked in place by 6 5' a segment f fitting thereon, as shown in y the plate, as shown in Fi 7.

Figs. 2 and 3. The arrangement of said rods is such as to permit particles of the material of desired fineness to pass therethrough. and the arc upon which said rods are ar ranged, is such to necessitate the ends of the hammers passingvery closely to the rods.

At the front or feed end of the machine and continuous with the arc formed by the rods F is a plurality of fiat bars F, forming a grate, the inner faces of the individual bars of which extend in close relation with each other. Said grate-bars as shown are five in number, though obviously a greater or less number maybe employed and permit material sufficiently comminuted when delivered to the machine to pass therethrough.

Secured in the hood or casing A is a segment-shaped wear-plate G, having a transversely-cornwated inner surface. The inner surface 0 said wear-plate G affords an arc corresponding with the sweep of the hammer ends and approximately concentric with the shaft C. A shaft 9 extends through the rear end of the wear-plate and throu h the sides of the casing or hood- A, and t e front end of the wear-plate is supported by means of a rod g, pivotally secured thereto by means of the lugs 9 and extends obliquely rearwardly and upwardly through a centrally slotted and apertured boss 9 upon the casing A. Said rod 9 is threaded for the greater part of its length, and nuts 9 and g engage thereon within the slot in said boss, as shown -in Fig. 2, and act to firmly lock the wearplate in adjusted osition, though admitting of varying'the adjustment toward or from the hammers at will by means of said nuts. As shown also, a set-screw g" is tapped through the top of the casing and bears upon therear end of said wear-plate and is provided with a jam-nut g ina familiar manner, firmly securing the set-screwin adjusted position to take part of the upward thrust on the front end of the wear-plate. Preferably said wear-plate is constructed'of cast-steel or other suitable metal and is cored internally, as indicated at g, to afford a steamchamber, and, as shown, a pipe 9 is connected therein and extends through the side of the casing A and affords means for admitting live steam from any desired source, which is discharged therefrom through a similar pipe opening from the opposite side of The operation is as fo lows: The machine may be driven from any suitable source of power driving'to the pulleys c and C and rotating the hammer-shaft in a direction to carry the material received into the machine downwardly past the grates F, over the screenbars F and upwardly beneath the wearlate G, which is adjusted with respect to theammore to compensate for wear by means of the screw-shaft g. Centrifu al force holds the hammers radially of the s aft C when in ICC IIS

owing to the centrifugal motion produced by the hammers. The roughing or corrugation of the wear-plate resists the movement of the material and aids in pulverizing it as the material is crushed by the blows of the hammers. Said wear-plate is heated to any desired temperature by means of steam admitted through the pipe '9 This with many kinds of material reatly assists in pulverizing the same. S ould a piece of material be passed into the machine of suflicient hardness to resist the blow of a hammer, the

hammer being pivotally supported upon the hammer-shaft is retarded sufficiently by such hard material to permit the same to slip past and immediately swing outward again into operative position. v

Obviously by the construction described the hammers can be adjusted to any desired operative .distance either from the screen-bars F or the wear-plate G by means of the yoke B. If, for instance, it should be desire'dto elevate the hammer-shafts, bringing the hammers into closer proximity with the wear-plate, the nut b on the adjustingshaft B is loosened and turned downwardly, and the nut b above the yoke is turned down, tilting'the yoke downwardly and elevating the shaft to an amount indicated upon the scale or indicator on the yoke, or should the reverse adjustment be desired the nut b is threaded upwardlyu on the shaft and the nut 6 set up beneath t 1e yoke, tilting the shaft downwardly and affording a lar er space between the ends of the hammersan the wear-plate, but decreasing the space between the ends of the hammers and the ends of the hammer.

screen-bars. The machine is thus capable of bein adjusted either to fine or coarser materia .and the operator is always able to determine with exactness the adjustment of the hammers with relation either to the wearlate or screen-bars.

ecome worn through use, as it will eventually, its front end is adjusted downwardly by means of the screw-shaft g and set-screw 9, thus swinging the wearplate as a whole upon a pivot g and bringing the front end of the same in the desired proximity with the When adjusted either by shifting theyoke or by shifting the plate, the parts are rigidly locked in adjustment by means of the nuts on the jack-shaft B oron the screw-shaft g.

Should the wear-platev Inasmuch as the hammer is supported upon self-centering bearings, such as "described, and the hammers are arranged of equal weight and at equal distances from the center of the shaft and from each other around, it follows that at all times the revolving. element is in perfect balance and moves with the least possible friction, the

roller-springs, as shown,-aflord ing a slightyresilient antifriction self-centering bearing, which tends to absorb and greatly reduce the tendency to shock or jar from the blows of the hammer upon the shaft, thusjto a greatextent obviating'the tendency toward crystallization.

Though I have shown but one construction embodying my invention, the invention is capable of embodiment in many different. ways, and I therefore do not purpose limiting this application for patent otherwise than necessitated by the rior art, as may details of construction and arrangement and adjustment may be varied without departing from the principles of this invention.

I claim as my invention 1. In a crusher or disintegrator, a casing having an upper charging-aperture, a shaft extending horizontally through the casing,

hammers pivoted radially on the shaft, a I wear-plate in the top of the casing, a screen 5 in the casing below the shaft and traversed by said hammers, levers journaled exteriorly of the casing, self-centering, resilient bearings thereon for said shaft and means for operating the levers to adjust the hammers vertically.

2. In a pulverizer, a rotatable shaft, hammers pivoted thereon at suitable intervals around the shaft,. a casing forming a cham ber adapted to receive the material toib'epulverized and having a chargingaperture therein, a plurality of screen-bars arran ed in an arc beneath said shaft, segment-p ates rigidly engaging said bars in place, awearplate' above the shaft, antifriction self-centeringbearings for said shaft and pivotallysupported means carrying said bearings and adapted for raising and lowering the shaft.

' 3. In a pulverizer, a casing, a rotatable shaft extending centrally therethrough, hammers pivoted radially on the shaft at equal intervals longitudinally and also circumferentially. of the shaft, an arc-shaped screen extending beneath the hammers, a verticallyadjustable, pivotally-supported yoke, antifriction resilient bearings thereon for said shaft external to the said casing, simultaneously-acting means for adjusting both bearings and the shaft and an indicator to measure the adjustment.

4. In a pulverizer, a metallic casing, a

shaft extending centrally therethrough, a

sleeve on said shaft having a flange on each end on the outer side of the casing, a plural ity of hammers pivotally engaged'on said loo sleeve, a screen extending at an arc beneath the sweep of the hammers, connected simultaneously-acting means for adjusting the hammers with respect to said screen, means for locking the same in adjusted position,

and self-centering resilient bearings for said shaft carried on said adjusting means.

5. In a pulverizer, a casing, a shaft extending therethrough and journaled exter-' nally thereof on self-centering bearing, radial.

hammers yieldingly secured on the shaft, a pivoted yoke external to the casing and on which the shaft is journaled, and adjusting means therefor acting to simultaneously adjust both ends of the shaft with respect to the casing.

6. In a ulverizer, a casing affording a pulverizing-c amber and having a charging-aperture in itstop, hammers arranged and adapted to operate within said casing, ta a c screen on one side the hammers, a wearproximately corresponding with the sweep of the hammers, a frame or yoke arran ed externally of and pivoted with its ends isposed centrally at opposite sides of the easmg, resilient coiled bearings for said shaft thereon and adjusting means acting also to secure saidyoke in adjustment.

8. In a ulverizer, a caslng affording a frame, a yo e pivoted to swing its arms vertically at each side the casing and centrally thereof, a shaft extending centrally through the casing and journaled 1n the yoke-arms, a plurality of coiled springs in said arm affording bearings for the shaft, hammer-su ports on the shaft, hammers carried on sai supports and a jack engaging the outer end of said yoke and adapted to adjust and lock the same in the desired adjustment.

9. In a pulverizer, a casing, a yoke pivoted .near its ends, on each side the casing, a shaft extending centrally of the casing and journaled on the ends of the yoke, hammer-supports on the shaft, hammers ivoted to the said supports, in close relation ongitudinally and swinging circumferentially, a screen arranged at an are below and out of thepath of the sweep of the hammers and a jack secured on the frame and engagin the yoke and acting to adjust both ends 0 the hammer-shaft simultaneously and hold the same in adjust-- ed position.

10. Ina pulverizer, a casing affording a material-chamber, a yoke pivoted with its arms on each side of the casing, a shaft extendin centrally through the casing and journa ed to the ends of the yoke, yielding bearings in said arms for said shaft, a peripherally-ribbed sleeve on the shaft, hammers pivoted between the ribs, a screen in the easmg arranged below and in suitable proximity to the sweep of the hammers, a wear-plate above the hammers, adjusting means pivoted thereon, a jack engaged on the yoke and acting to secure the same in adjustment and adapted to elevate or depress the hammershaft and lock the same in the adjusted position.

11. In a pulverizer, a casing affording a material-chamber, a yoke having an arm on each side the casing and pivoted on the casing to simultaneously move both its arm ends vertically, a shaft extending centrally through the casing and 'ournaled on the ends of the yoke-arms, antifriction resilient selfcenterin bearings therefor, a peripherallgribbed s eeve rigidly secured on the sha pintles extending through the ribs parallel with the shaft, a screen in said casing and arranged in suitable proximity with the sweep of the hammers, a hollow wear-plate sim1-- larly but oppositely disposed in the casing, and indicating and adjustin mechanism acting on the yoke to shift the ammers toward and from the wear-plate and the screen and to lock the same in adjustment while the hammers are in motion.

12. In a pulverizer, a casing having a charging-aperture and affording a materialchamber, a shaft extending centrally there through, hammer-supports on the shaft, radially-swingi'ng hammers pivoted to the said supports, a screen arranged below and .in suitable proximity to the sweep of the hammers, a wear-plate adjustable to and above the hammers, a threaded shaft pivoted thereon and adjustably engaged on the casing, a centrally-pivoted frame or yoke arran ed externally of the casing and provide with boxes affording an antlfriction self-centering bearing for said shaft and rotatable means for securing the yoke in the desired adjustment. V

13. In a ulverizer embracing a casing open at the ottom and'having a chargin a erture in its top, a vertically-movabl s aft extending horizontally and centrally therethrough, hammer-Sn ports rigidly but removably secured on t e shaft, parallel equidistant pintles in the hammer-supports, hammers ivoted on the pintles, a screen arranged be ow and in proximity'to the sweep of, the hammers, an adjustable wear-plate above the hammers a vertically-tiltable frame or yoke pivoted intermediate its ends externally of the casing, antifriction-bearings 'on the ends ofthe arms thereof for the shaft mers in the desired adjustment.

14. In a ulverizer, a casing open at the bottom and having a charging-aperture, a shaft extending horizontally and centrally therethrough, ribbed hammer-supports on the shaft, parallel equally-distanced pintles extending through the ribs, hammers pivoted 011 the pintles and between the ribs, a screen arranged below the sweep of the hammers, an adjustable wear-plate above the hammers, an adjustable tilting frame on which the shaft is journaled and whereby the hammers are adjusted to the screen and the wear-plate while the hammers are in motion and means shifting and locking said frame in the desired adjustment.

15. The combination with a vertically-adjustable shaft of a casing inclosing the same and having a charging and a discharging aperture therein, a sleeve rigidly engaged on saidshaft and having a flange on each end thereof engaging on the outer sides of the casing, radial hammers pivoted on the sleeve and resilient roller-bearings for said shaft.

16. The combination with a casing having a discharge and a charging opening therein, of a resiliently-supported shaft extending centrally and horizontally therethrough, a tilting yoke having a centrally-pivoted arm on each side the casing and on the ends of which the shaft is journaled, radial hammers on the shaft, a screen below and a wear-plate above the hammers, and a vertically-arranged screw-threaded stud secured to the casing and extending loosely through the crotch of the yoke and nuts on said stud above and below the yoke acting to hold the same in adjustment.

17. In a pulverizer, the combination with a casing having a discharge and a charging aperture, of a haminenshaft extending centrally therethrough, a plurality of closely-arranged bars extending parallel with the shaft and disposed concentric therewith and acting with the, hammers to pulverize the material inserted in the casing, a tiltable frame exter nal to the'c'asing, antifriction-bearings thereon for said hammer-shaft, a screw-threaded stud extending through the tiltable frame and nuts on the said stud above and below the frame acting to hold the frame rigidly in adjustment with respect to said bars.

18. In a pulverizer, the combination with a horizontally-arranged vertically-adjustable hammer-bearing shaft and its hammers, of a casing containing and surrounding the hammer-bearing portion of the shaft, a suitablysupported vertically-tiltable frame on which said shaft is journaled parallel with the axis of the frame, and provided centrally with an aperture of greater diameter at its ends than at its center, an upright stationary screwt-hreaded stud extending loosely through the surrounding the hammer-bearing portion of said shaft, a vertically-tiltable frame external to the casing and having a central aperture therethrough tapering toward its center, bearings thereon for said hammer-shaft remote from and parallel to the axis-of the frame, a stationary upright screw-threaded stud secured to the casing and extending loosely through said aperture, nuts on the stud respectively above and below the frame and'an indicator on the stud extending in proximity to a scale on the frame.

20. In a pulverizer, a revoluble shaft and hammers thereon, of means for revolving the same, a casing forming a chamber wherein the said hammers operate and provided at one side of the shaft with a charging-aperture and at the bottom with a discharge-opemng,.

at the other, and means for securing the said wear-plate in the desired adjustment against the outward thrust.

21. In a machine of the class described the 1 said sleeve, a segment-shaped wear-plate pivoted in said casing above the hammers, a lug on said casing, provided with an aperture therethrough o ening through the casing at the front end of said plate, a threaded shaft pivoted on the front end of said plate and oosely engaged in said aperture, set-nuts thereon adapted to adjust said plate with respect to said hammers and a set-screw en,- gaged in said casing and bearing on the front end of the plate- 22. Ina disintegrator, a shaft arranged in a horizontal plane, hammer-supports on the" shaft, hammers pivoted to said supports, a casing containing the hammers and r0- vided at one side of the shaft with a chargmgaperture and having a bottom discharge, a standard on each side of said casing, a yoke pivoted thereon, bearings in the ends of said yoke for said shaft, a rearwardly-directed leg on the casing, an upwardly-directed threaded shaft in said leg adapted to extend through an aperture in said yoke and setresilient antifriction-bearings on said yoke,

nuts on said shaft engaging above and below the yoke.

23. In a disintegrator, the combination with a horizontally-rotating hammer-bearing shaft, of a casing containing and surrounding the hammer-bearing portion thereof and provided at one side of the shaftwith achargingaperture and having a bottom discharge, a screen rigidly engaged beneath the hammers, a yoke pivotally engaged without the casin bearing-boxes on the ends thereof, a

lura 'ty of coiled bearing members in said one adapted to resiliently support said shaft, an adjusting-shaft extending through an aperture in said yoke and means thereon adapted to hold the yoke in adjusted position.

24. In a device of the class describedthe combination with a casing, of a shaft extend ing transversely therethrough, a plurality of hammers pivoted on saidshaft, a screen beneath the hammers and concentric with said shaft, a slotted standard on each side of said casing, a yoke pivoted in said standards and having its ends projecting beyond the same,

ends of saidshaft, a rearwardly-directed lug on said casing, a vertical adjusting-shaft rigidly engaged in said leg and extending through 'an aperture in said yoke and means on said adjusting-shaft adapted to hold the same in adjusted position.

25. In a pulverizer the combination with a casing having a bottom discharge and a charglngeaperture, of a slotted boss thereon,

a shaft extending centrally through the easing, hammers hinged to the shaft and revolving therewith, stationary screen-bars below, the sweep of the hammers, segment-plates rigidly engtaged on'the casing and adapted to hold said ars place, a hollow wear-plate above the sweep of the hammers, a steam connection therein, a pivot connection be tween one end of the wear-plate and the casing, a bolt pivoted to the other end of said wear-plate and extending loosely through the aforesaid boss and through the slot therein and nuts on the bolt Within the said slot.

26. In a pulverizer of the class described the combination with the casing and the hammer-bearing shaft arranged rotatably therein, of a chambered wear-plate having a roughened inner face and arranged Within the casing on an are approximately coinciding with the sweep of the hammer ends, means for adjusting said wear-plate to or from the hammers comprising a bolt pivoted on the plate, an apertured boss on the casing through which said bolt extends and having the combination with a casin having an aperture in each side, of a s aft extending transversely through said apertures, a sleeve rigidly-engaged thereon and having a flange on each end closing said aperture, hammers pivoted on said sleeve, a pair of segmentbars oneach side of the casing, screen-bars rigidly engaged between said bars, levers supporting said shaft and means for adjusting the same to raiseand lower the hammers.

28. Ih'amachine of the class described, a casing having a discharge-aperture and a charging-aperture, a yoke pivoted centrally with its ends on each side the center of the casing, a hammer-shaft journaled on the ends of said arms, a jack acting to swin said yoke to adjust said shaft in the casing,' ammers arranged in longitudinal lines on the the shaft and pivoted to swing circumferentially thereof, a pluralit of closel -arranged rods affording a screen elow the ammers,a wear-plate arranged above the hammers and adjustable With respect thereto and affording a steam-chamber and steam connections openin into said wear-plate.

29. n a machine of the class described a casing, a vertically-adjustable hammer-shaft therein, hammers pivotally'enga 'ed on said shaft, a pair of segment-bars rigidly engaged on each side of the casing, a plurality of screen-bars rigidl engaged therebetween and means-for ad usting the hammers with respect to said screen comprising a yoke affording bearings for said sleeve, a vertical shaft extendin through said yoke and setnuts thereon a apted to support the yoke in adjusted position.

30. In a machine of the class described, a casing having a discharge-opening in the bottom and an upper charging-aperture, a hammer-shaft journaled centrally therein, hammers thereon revoluble therewith. a stationary screen comprising closely-arranged bars extending from the charging-aperture around approximately one-half the casing below the hammers, segment-plates rigidly engaged in the casing and adapted to hold said bars in place, a wear-plate extending from the screen to the chargin -aperture above the hammers,

.a steam-cham er therein, means for adjust- ;ing the Wear-plate to the hammers and means adjusting the hammer-shaft with its hammers bodily to and from the screen and Wear -plate comprising a yoke' affording bearing: for said shaft, pivotal supports for said yo e, a fixed shaft ,extending through the yoke and means thereon adapted to hold the yoke in adjusted position.

In testimony whereof I have hereunto sub-- scribed my name in the presence of two subscribing Witnesses.

- PETER L. SIMPSON. Witnesses:

W. W. WITHENBURY, HJALMAR S. RUDD. 

